sensors Mode-S transponder
7809E6
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5738 · BOEING 737-800
- Hex
- 7809E6
- Octal
- 36004746
- Decimal
- 7,866,854
- Country
- CN
- Tail
- B-5738
- Type
- B738
- Flights observed
- 36
- Distinct callsigns
- 10
- Country
- CN
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 7809E6 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 10 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSN6318 | China Southern Airlines | 11 | 2026-07-24 |
| CSN6317 | China Southern Airlines | 10 | 2026-07-24 |
| CSN5104 | - | 4 | 2026-07-22 |
| CSN3987 | China Southern Airlines | 4 | 2026-05-21 |
| CSN5103 | - | 2 | 2026-07-22 |
| CSN6222 | China Southern Airlines | 1 | 2026-05-17 |
| CSN3988 | China Southern Airlines | 1 | 2026-05-08 |
| CSN3292 | China Southern Airlines | 1 | 2026-06-10 |
| CSN3286 | China Southern Airlines | 1 | 2026-06-13 |
| CSN3259 | China Southern Airlines | 1 | 2026-07-21 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | CSN6318 | HRB → WUH | Jul 24, 09:05 UTC | Jul 24, 09:45 UTC | 40m |
| 2026-07-24 | CSN6317 | WUH → HRB | Jul 24, 04:40 UTC | Jul 24, 05:00 UTC | 20m |
| 2026-07-23 | CSN6317 | WUH → HRB | Jul 23, 09:05 UTC | Jul 24, 05:00 UTC | 19h 55m |
| 2026-07-22 | CSN5104 | - | Jul 22, 15:35 UTC | Jul 23, 09:20 UTC | 17h 45m |
| 2026-07-22 | CSN5103 | - | Jul 22, 13:10 UTC | Jul 22, 13:25 UTC | 15m |
| 2026-07-21 | CSN3259 | PKX → CKG | Jul 21, 12:40 UTC | Jul 21, 12:50 UTC | 10m |
| 2026-07-17 | CSN6318 | - | Jul 17, 04:39 UTC | Jul 17, 09:25 UTC | 4h 45m |
| 2026-07-13 | CSN6317 | - | Jul 13, 04:35 UTC | Jul 13, 09:00 UTC | 4h 25m |
| 2026-06-27 | CSN6317 | - | Jun 27, 04:44 UTC | Jun 27, 09:15 UTC | 4h 30m |
| 2026-06-25 | CSN6317 | - | Jun 25, 05:50 UTC | Jun 25, 06:09 UTC | 20m |
| 2026-06-24 | CSN6317 | - | Jun 24, 10:45 UTC | Jun 25, 06:09 UTC | 19h 25m |
| 2026-06-18 | CSN5104 | - | Jun 18, 14:30 UTC | Jun 18, 15:35 UTC | 1h 5m |
| 2026-06-18 | CSN5103 | - | Jun 18, 12:00 UTC | Jun 18, 12:15 UTC | 15m |
| 2026-06-13 | CSN3286 | PKX → NNG | Jun 13, 00:30 UTC | Jun 13, 00:40 UTC | 10m |
| 2026-06-10 | CSN3292 | NNY → CAN | Jun 10, 02:05 UTC | Jun 10, 02:45 UTC | 40m |
| 2026-06-07 | CSN6317 | WUH → HRB | Jun 7, 04:35 UTC | Jun 7, 08:55 UTC | 4h 20m |
| 2026-06-04 | CSN6318 | HRB → WUH | Jun 4, 04:45 UTC | Jun 4, 09:15 UTC | 4h 30m |
| 2026-05-25 | CSN6318 | HRB → WUH | May 25, 10:00 UTC | May 25, 10:20 UTC | 20m |
| 2026-05-21 | CSN3987 | SZX → CSX | May 21, 05:25 UTC | May 21, 09:55 UTC | 4h 30m |
| 2026-05-20 | CSN6318 | HRB → WUH | May 20, 08:50 UTC | May 21, 05:40 UTC | 20h 50m |
| 2026-05-20 | CSN6318 | HRB → WUH | May 20, 04:40 UTC | May 20, 09:10 UTC | 4h 30m |
| 2026-05-19 | CSN6318 | HRB → WUH | May 19, 09:00 UTC | May 20, 04:50 UTC | 19h 51m |
| 2026-05-19 | CSN6317 | WUH → HRB | May 19, 04:30 UTC | May 19, 09:20 UTC | 4h 50m |
| 2026-05-18 | CSN6318 | HRB → WUH | May 18, 09:05 UTC | May 19, 04:45 UTC | 19h 39m |
| 2026-05-18 | CSN6317 | WUH → HRB | May 18, 04:25 UTC | May 18, 09:20 UTC | 4h 55m |
| 2026-05-17 | CSN6222 | XMN → NNG | May 17, 01:20 UTC | May 17, 04:30 UTC | 3h 10m |
| 2026-05-09 | CSN3987 | SZX → CSX | May 9, 05:45 UTC | May 9, 10:25 UTC | 4h 40m |
| 2026-05-08 | CSN3988 | CSX → SZX | May 8, 09:34 UTC | May 9, 06:00 UTC | 20h 25m |
| 2026-05-08 | CSN3987 | SZX → CSX | May 8, 05:24 UTC | May 8, 09:49 UTC | 4h 25m |
| 2026-05-06 | CSN6317 | WUH → HRB | May 6, 04:40 UTC | May 6, 09:20 UTC | 4h 40m |
| 2026-05-04 | CSN5104 | - | May 4, 11:55 UTC | May 4, 15:25 UTC | 3h 30m |
| 2026-05-02 | CSN6318 | HRB → WUH | May 2, 04:30 UTC | May 2, 09:35 UTC | 5h 5m |
| 2026-04-28 | CSN6318 | HRB → WUH | Apr 28, 04:35 UTC | Apr 28, 09:05 UTC | 4h 30m |
| 2026-04-26 | CSN6318 | HRB → WUH | Apr 26, 05:00 UTC | Apr 26, 09:15 UTC | 4h 15m |
| 2026-04-25 | CSN5104 | - | Apr 25, 11:50 UTC | Apr 25, 14:55 UTC | 3h 5m |
| 2026-04-22 | CSN3987 | SZX → CSX | Apr 22, 05:15 UTC | Apr 22, 10:05 UTC | 4h 50m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the B-5738 page for operator, model, and routing details .